No. Rekordbox data can not be burned to a CD.
Rekordbox would benefit you only when you play on CDJ-2000 or CDJ-2000nexus players. It allows you to analyze your tracks before your gig, to prepare the waveforms that display on the player screens, to set cue points, add tags (artist, key, BPM, cover-art, etc..). You then export your tracks to USB drives, or SD cards with the additional information attached.
You would need to use your existing CDs if you played on CDJ-1000MK3 or below, as these don't support Pioneer's Pro-Link, nor USB/SD media.